mandolin, piano Paul Sidoti – acoustic guitar Amos Heller – bass guitar Matt Billingslea – electric guitar Jonathan Yudkin – strings Colbie Caillat – guest vocals Charts "Breathe" "Breathe (Taylor's Version)" Certifications References 2000s ballads 2008 songs Taylor Swift songs Colbie Caillat songs Songs written by Colbie Caillat Songs written by Taylor Swift Song recordings produced by Taylor Swift Song recordings produced by Chris Rowe Song recordings produced by Nathan Chapman (record producer)